A Test for Pickling Process of S31803 Austenite-Ferrite Duplex Phase Stainless Steel

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- A Test for Pickling Process of S31803 Austenite-Ferrite Duplex Phase Stainless Steel
- Special Steel Vol. 29, Issue 2, Pages: 67-68(2008)
- 作者机构：
  
  太原钢铁(集团)有限公司,太原,030003
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Online First：28 January 2023，
  
  Published：28 January 2008
- 稿件说明：
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李国平侯瑞鹏王培智范新智. A Test for Pickling Process of S31803 Austenite-Ferrite Duplex Phase Stainless Steel[J]. Special Steel, 2008, 29(2): 67-68.
DOI：

李国平侯瑞鹏王培智范新智. A Test for Pickling Process of S31803 Austenite-Ferrite Duplex Phase Stainless Steel[J]. Special Steel, 2008, 29(2): 67-68. DOI：

S31803奥氏体-铁素体双相不锈钢(%:0.03C、22.05Cr、5.23Ni、3.10Mo、0.16N)合金含量高，氧化层中所含的合金元素多，氧化物结构复杂，不易酸洗。通过正交试验得出H2SO4220g/L

NaCl 30 g/L

添加剂10 g/L

在60 ℃平均酸洗时间57.2 min

使酸洗后的钢板表面色泽均匀，酸洗合格率达100%。

Due to higher alloy content in steel

plenty of alloy element in oxide layer and complexity of oxide struc- ture

there are some trouble in pickling process for S31803 austenite-ferite duplex phase stainless steel(0.03C

22.05Cr

5.23Ni

3. 10Mo

0. 16N).Iwas obtained by orhogonal test that with pickling solution H2SO4220g/L

NaCl 30 g/L

addition agent 10 g/L at 60 ℃ for average pickling time 57.2 min

after pickling the colour and gloss of plate surface was uniform and up to standard rate was 100%.

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